George asiiwort it and elijah asiiwortii



INVENTORS Patented July 16, 1889.

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(No Model.)

N. PETERSv Fh UNITED STATES PATENT OFFICE.

GEORGE ASHlVORTH AND ELIJAII ASlllVORTlI, OF MANCHESTER, COUNTY OFLANCASTER, ENGLAND.

CARDlNG-ENGINE.

SPECIFICATION forming part of Letters Patent No. 406,985, dated July 16,1889.

Application filed August 21, 1888. Serial No. 283,393. (No model.)Patented in England April 3, 1884, No. 5,857.

To all whom it may concern; we form an opening sufficient for tho admis-Be it known that we, GEORGE AsHWoRTH sion of the grinder to act upon themain cyland ELIJAH AsHWORTH, engineers, subjects inder. This opening weclose by means of of the Queen of Great Britain and Ireland, anaccurately-fitted door made of a plate so and residing at Manchester,county of Lanshaped and applied that when secured in pocaster, England,have invented certain Imsition the inner side of the door forms aconprovements in Carding-Engines, (for which tinuation of the innersurface of the coveringwe obtained a patent in Great Britain, No. plateto which the door is applied. Partly to 5,857, dated April 3, 18%,) ofwhich the folpreventthe accumulation of fluff upon the IO lowing is aspecification. comb-shaft we in some cases extend the doffer- Ourinvention consists of further improvecover over the comb and shaft.ments upon a former invention for which To render the description of ourinvention Letters Patent of the United States, nummore clear, we willreferto the accompanying bered 318,226, have been granted to us. Indrawings;

I5 the said former invention, in order to obtain Figure 1 represents abroken side elevation greater accuracy of action in the traveling of acarding-engine framing constructed in cards, we applied bands of steelto turned accordance with our invention, the parts rails on the sideframing. of the engine not necessary to the under- The object of ourpresent invention is to standing of our invention not appearing.

2o obtain greater accuracy in the application Fig. 2 illustrates theadjustment of the cover and adjustment of the parts which inclose forthe front of the engine. Fig. 3 shows the the main cylinder and dofferfrom the flats to formation of the cover last named and of the the combor thereabout. Instead of the ordoffer-covcr at the point of convergenceof the dinary hinged doffer-cover, we apply a sheettwo covers.

25 steel covering-shell upon the turned end cas- In Fig-1, a is a partof the ordinary under ings of the doifer. This shell is bent or framing,and l) is a bend which is turned on molded to a truly cylindrical formand accuits periphery and provided with steel bands rately fits theedges of the said end casings, c, as set forth in the specification ofour said which are turned to such a size that when the former invention.The doffcr is indicated by 0 cover is in place itjust clears the doffer,so the dotted circle d. Upon each of the pod So that there is a minimumof space for the pasestals e, in which the doffer-shaft revolves, sageof air. The cover for the front of the we cast an end casing or plate 6,which is carding-engine also consists of an accuratelyturned upon thecenter of the bearing, so that molded plate, which is curved so thatwhen when the dotfer is mounted in working posi- 35 in position it justclears the covering of the tion the turned peripheries of the two endmain cylinder. The two ends of the curved casings shall be trulyconcentric with the axis plate are screwed, riveted, or secured to twoof the doffer and shall project slightly beyond turned angle-pieces,which can be bolted or the periphery of the same. Upon the two securedto the side frames, so as to hold the turned end casings we apply acoverf, made 40 said plate in position, and as the said side ofsheet-steel bent, pressed, or molded to the 0 frames are also turnedtrue the covering-plate form of a cylindrical arc of such proportions isbrought into atrue position without a tendas will accurately fit the endcasings and will ency for the holding-screws or bolts to distort justclear the card-surface of the doifer. This the plate. In order that theplate may be cover is or may be secured to the end casings 45 correctlyin position when it is put in its by means of screws g, the holes in thecover place and the end angle-pieces are pressed being slotted, as shownat 9, so that the cover against the end frames, we provide each ancan beadjusted. To the front edge of the gle-piece with two correctly-adjustedsurfaces cover we hinge a cover h, which extends Over which bear uponthe steel band which is apthe doiler-comb 2', and in some cases over its50 plied upon the said frame. In the said plate shaft, as indicated indotted lines in Fig. 1. I00

In addition to the use hereinbefore mentioned, this extension of thedoffer-cover tends to prevent the accidental drawing in of foreignsubstances between the doffer and the cover. The front of the engine isinclosed bya cover k, which is also made of sheet-steel molded to theform of a cylindrical are, so that its concave side will just clear thecard-surface of the main cylinder, as seen in Fig. 2, which is a sectionon the line A of Fig. l drawn to a large scale. Each end of this coveris secured 'to a curved angle-piece Z, which is turned to the correctform, and the inner flat faces of the two parts are truly turned, so asto be parallel one with another and to fit against the flat turned facesof the bends b, to which the parts are secured by means of screws m. Ineach of the parts Z two screws 02 n are fixed, and they are so regulatedin length that when the cover is applied in position with the ends ofthese screws bearing upon the outer steel ribbons on each side the coverwill be brought into its correct position without the necessity forfurther adjustment. We employ screws to bear upon the ribbons because ofthe facility these screws offer for obtaining the required adjustment,and also the screws may be made of steel and be hardened; but after theadjustment is once correctly obtained it is not our intention to vary itby turning these screws.

It will be seen that when the outer steel ribbon has been removed fromeach side of the carding-engine it is only necessary to secure the coverin position with the ends of the screws bearing upon the ribbons, whichwould then be the outer ribbons, no other adjustment being required. Wedo not remove this cover when the grinding of the cylinder is to beeffected; but we form a portion of the cover to open as a hinged dooris, so that it can be opened to admit the grinding-roller, ashereinbefore mentioned. In Fig. 1 this part is shown as when so opened.The grindin g can thus be effected without removing the doifer-cover.The lower edges of the two covers are represented on a larger scale inFig. 3, wherein it will be seen that they are each beveled to athin edgeand extended downward as closely as possible toward the point of nearestapproach of the cylinder and dolfer. Between the nearly-meetin g edgesof the two covers we leave a narrow space 0' sufficient for theintroduction of the gage, and this space we close when the engine is atwork by means of a removable strip 0 or of any suitable appliance. Ashereinbefore mentioned, the cover f is adjustable upon the enddoffer-casings e. After slackening the screws 9 this cover can be slidto some extent in either direction around the doffer, so as to regulatethe width of the space at 0' after the adjustment of the flats and otherparts has been effected, or if preferred the said space might be closedby bringing the edge of the cover f close up to the other cover.

Having now described our invention, we

declare that what we claim is 1. The combination of the cylinder andside frames of a carding-engine and bands or arcs thereon with thearc-shaped cover k, angle-pieces which carry the said cover and arefitted to the frames, and accurately-adjusted stops which bear upon thebands or arcs to determine the distance of the cover from the cylinder,all substantially as set forth.

2. The combination of the doffer-cylinder and pedestals in which itsshaft turns with the turned end casings e, each cast in one piece with,the corresponding pedestal of the dolfer, and the adjustable sheet-metalcover fitted to the said turned end casings, and means, substantially asdescribed, for adjusting the cover thereon, substantially as set forth.

3. The combination of the cylinder, doifer, side frames, and turned endcasings with the sheet-metal cover on the frames and the adjustablesheet-metal cover f on the turned end casings, and means, substantiallyas described, for adjusting the cover thereon, the adjacent edges of thecovers nearly'meeting in the space between the cylinder and doffer,substantially as and for the purpose set forth.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

GEO. ASHWORTH.

ELIJAH ASI-IVVORTH. Witnesses:

DAVID FULTON, FREDK. DILLON.

